Financial Modeling Prep MCP Server

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

No annotations are provided, so the description carries full burden. It mentions 'real-time quotes' and 'monitor price changes,' implying read-only data fetching, but doesn't disclose critical behavioral traits: whether it requires authentication, rate limits, data freshness (e.g., delayed vs. live), error handling, or output format. For a data-fetching tool with zero annotation coverage, this is a significant gap in transparency.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is concise and front-loaded, with the first sentence covering the core functionality. Both sentences are relevant, avoiding fluff. However, it could be slightly more structured by explicitly stating the tool name or separating key points, but overall it's efficient with zero waste.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given the complexity of batch forex data fetching, no annotations, and no output schema, the description is incomplete. It lacks details on behavioral aspects (e.g., authentication, rate limits), output structure (e.g., JSON array of quotes), and usage boundaries (e.g., max pairs per request). For a tool with no structured metadata, the description should provide more context to be fully helpful.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 100%, with one optional boolean parameter 'short' fully documented in the schema. The description adds no parameter-specific information beyond implying batch forex quotes. Since the schema handles the parameter documentation adequately, the baseline score of 3 is appropriate—the description doesn't add value but doesn't need to compensate for gaps.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the tool's purpose: 'access real-time quotes for multiple forex pairs simultaneously' and 'monitor price changes across different markets.' It specifies the verb ('access'), resource ('forex pairs'), and scope ('multiple'/'simultaneously'), distinguishing it from single-pair tools like getForexQuote. However, it doesn't explicitly differentiate from sibling tools like getForexQuotes or getForexShortQuote, which might offer similar functionality.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description provides no guidance on when to use this tool versus alternatives. It mentions 'multiple forex pairs' but doesn't specify thresholds (e.g., use for 2+ pairs) or compare to other forex tools like getForexQuote (single pair) or getForexQuotes (unspecified batch). There's no mention of prerequisites, limitations, or typical use cases beyond generic 'stay updated.'

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.